Concrete-building mold.



no: 860,479. PATENTED JULY 16, 1901.

J. L. INGERSOLL.

GONGRETBBUILDING MOLD. nruounon mum m. 19, 1907.

2 SHEETS-SHEET 1.

anueuloz v 1/911711 use:

PATENTBD JULY 16, 1907.

J. L. INGERSOLL.

CONCRETE BUILDING MOLD. APiLIOATIOK 11.21) JAN. 19. 1907.

2 SHEETS-SHEET 2.

wa t eases 7n: NORRI: psntks cu, wnnmawn. 0.1:.

JOHN L. lNGERSOLL, OF RICHMOND, VIRGINIA.

CONCRETE-BUILDING- MOLD.

Specification of Letters Patent.

Patented July 16, 1907.

Application filed January 19,1907. Serial No. 353,167.

To all whom it may concern:

Be it known that I, JOHN L. INGERSOLL, a citizen of the United States of America, residing at Richmond, in the county of Henrico and State of Virginia, have invented new and useful Improvements in Concrete- Building Molds, of which the following is a specification. p

This invention relates to concrete building molds, and one of the principal objects of the same is to provide means whereby either a plain facing wall may be molded or a wall having the appearance of a wall made up of separate stones with broken joints.

Another object of the invention is to provide means whereby the body of the wall may be made of comparatively coarse material, and the facing of the wall may be made of finer materials, so as to present a better appearance upon the outer surface.

" These and other objects may be attained by means of the construction illustrated in the accompanying drawings, in which:

Figure l is a perspective view of a concrete mold made in accordance with my invention. Fig. 2 is an elevation of the inner side of the front board of the mold. Fig. 3 is a detail view showing the manner of securing the adjusting rods to the front member or board of the mold. Fig. t is a plan view of one of the removable draw boards.

Referring to the drawing for a more particular description of the invention, the numeral 1 designates the inner board of the mold, and 2 is the outer board of the mold, said two members being each provided with uprights 3, 4 secured to the outer sides thereof, and extending above the upper edges of the members "1 and 2. An adjusting rod 5 passes through each pair of uprights 3, 4, said adjusting rods being threaded and seated in threaded openings in said uprights. Threaded rods 6 pass through each of the uprights 3, and the ends of said rods being seated in keepers 7, securedto the uprights 4, as shown more particularly in Fig. 3, the rods 6 being threaded and passing through a threaded opening 8 in each of the uprights 3. Perfofated plates 9 are secured at the opposite ends of each of the members 1 and 2, the purpose of which is to connect another mold of similar construction edge to edge to the mold shown by means of suitable plates or other fastenings. In the lower edge of the member 1, a series of recesses 10 is provided to engage the stringers in forming the second story of the building. Formed on the inside of the member 2 is a facing mold 11 having depressions 12 andribs 13 for the purpose of forming a facing on the wall which will imitate the usual stone or brick wall facing. A series of draw boards 14 provided with lugs 15'at their upper ends for withdrawing the same from position are provided with inclined edges 16, the purpose of which is to limit the draw boards to be removed whenever required without coming in contact with the adjusting rods 5.

The operation of my invention may be described as follows: The mold members 1 and 2 being adjusted to the thickness of the wall desired, and the draw boards 14 being placed against the inner surface of the facing member 11, concrete material is inserted between the boards, and should it be desired to face the wall with imitation stone blocks the draw boards 14 are removed by a suitable tool inserted in the perforation in the lugs 15 after the concrete material has become set. A plastic material of finer quality than that of which the wall is composed is then poured in between the inner face of the member 2 and the molded wall. After this material has become properly set and dried, the mold members are removed and set up at another point for operation. Should it be desired, however, to form a wall having a plain facing, the draw boards 14 are not removed but permitted to remain until the entire mold is removed.

From the foregoing it will be obvious that a mold made in accordance with my invention is of comparatively simple construction, may be utilized for forming plain or faced walls, is quickly removable from the wall after it has been molded, and is strong, durable and efficient in use.

Whenever it is desired to form a hollow building wall a pair of draw boards or cores similar to that shown in Fig. 1- of the drawings, may be disposed at a point centrally within the concrete wall to be withdrawn after the wall has been formed. These sectional draw boards or cores being provided with inclined faces will permit one section to be withdrawn readily and then the other section, as will be obvious.

Having thus described the invention, what is:

1. A molding device for concrete walls comprising an inner member and an outer member, the outer member having :1 facing mold upon its inner side, uprights secured to said members and extending above the some, and threaded adjusting rods extend through said uprights for moving said members toward and from each other, draw boards to cover the facing mold, said draw boards each having an inclined edge and the inner member of said mold being provided with recesses for the stringers.

12. A mold for concrete walls comprising an inner memher and an outer member, said outer member havinga fuclng mold on its inner side, uprights secured to said members, allncd threaded openings in said members, adjusting I claimthe outer member, and a series of draw boards having inclined sides to permit the same to be removed from the facingmold, substantially as described.

In testimony'whereof, I 'affix my signature in presence of two witnesses.

JOHN L. INGERSOLL.

Witnesses:

CHAS. I. PHILIPS, ISAAC HELD. 

